Paraiba – the word has had a magic ring to it since the discovery of the rare and precious cupriferous tourmalines, which originally came only from the Brazilian state of Paraiba. Their radiant turquoise-blue is a color of incomparable beauty and zest- a treasure for gemstone lovers and connoisseurs.
Formula: Na(Li, Al)3Al6B3Si6O27(OH)3(OH,F)
Hardness: 7 – 7.5
Density: 2.90 – 3.40 g/cm3
Refractive Index: 1.614 – 1.666 DR: 0.014 – 0.032
Color:
Turquoise-blue, mint-green,violet, pink
Countries of Origin:
Brazil, Nigeria, Mozambique
Birthstone: October